Improved flour-sifter



UNTTEE STATES ATENT OEETCE WILLIAM C. MGGILL, OF CINCINNATI, OHIO.

IMPROVED FLOUR-SIFTER.

Specification forming part of Letters Patent No. 53,64l, dated April 3,1666.

To all whom it may concern:

Be it known that I, WILLIAM C. MCGILL, of Cincinnati, Hamilton county,Ohio, have invented a new and useful Flour-Sitter; and I do herebydeclare the following` to be a full, clear, and exact descriptionthereof, reference being had to the accompanying drawing, making part ofthis specification, and in which a sit'ter embodying my invention isrepresented by a transverse section.

A represents one of a pair of vertical plates or boards which constitutethe ends of my sifter. y

B is my sieve, in the form of a cylindrical are, and either perforatedor composed of wiregauze, its ends being securelyv fastened to theplates or boards A. The ends A are perforated concentric with the sieveB to afford bearings for a horizontal shaft, C, from which projects anarm, D, having a slot, E, which holds a exiblc blade, F, having twolugs, G G', which retain the bladein the slot and limit its vibrations.

H is a handle for operating the shaft C. The parts C D E F G G H, I callcollectively the sweep, I. The parts F G G', I call collectively thescraper, J. Extending from end to end ofthe sitter are two obliqueboards or plates called the detlectors,77 K K.

Operation A suitable quantity of flour having been introduced, the sweepis vibrated briskiy to and fro, so as to urge a portion ot' theparticles ot' flour through the meshes ofthe sieve `and to impel otherportions upward against the deflectors K and K alternately, whence theyfall down into the middle portion of the sit'ter, as indicated by thedescending l W. C. MGGILL.

Witnesses:

GEO. H. KNIGHT, JAMES H. LAYMAN.

